Mode-S AE0239 · Transponder Hex for 63-7977

Q: What is Mode-S code AE0239?

AE0239 is an ICAO 24-bit transponder address. Assigned to 63-7977 .

Last known position

Most recent position reported by Mode-S AE0239.

Callsign history 2 distinct

Callsign	Airline	Flights	Last seen
TEXON01	-	1	2026-05-13
OILER22	-	1	2026-05-15

Recent flights last 3

Date	Flight	Route	Takeoff	Landing	Duration
2026-05-15	OILER22	-	May 15, 14:30 UTC	May 15, 15:05 UTC	34m
2026-05-13	TEXON01	-	May 13, 17:45 UTC	May 13, 19:20 UTC	1h 35m
2026-04-18	-	-	Apr 18, 19:50 UTC	Apr 18, 20:05 UTC	15m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the 63-7977 page for operator, model, and routing details .

Mode-S AE0239 frequently asked

What is Mode-S code AE0239?

AE0239 is an ICAO 24-bit transponder address. Assigned to 63-7977.

Is AE0239 broadcasting right now?

No active broadcast right now. Last signal was 14d ago.

Hex, octal, and decimal Mode-S codes: what's the difference?

The same 24-bit identifier expressed in different bases: hex AE0239, octal 53401071, decimal 11,403,833.

What flights does AE0239 operate?

Mode-S AE0239 has broadcast 2 distinct callsigns, including TEXON01, OILER22.